The 25mm general gearmotors are widely used on Intelligent robots,intelligent manipulators, intelligent furnitures, Intelligent focusing systems etc. Those are incredibly tough and feature full metal gears. Have gear ratio 4.4:1 to 478:1,1360rpm~12rpm, stall torque 0.6~9Kg.cmType: MG25B-060175-34Features:
Voltage: 3-9 V
Gear Ratio:34:1
Stall Torque: 4.5Kg.cm (6V)Stall Current: 2.6A (6V)No load Speed: 175rpm (6V)
No Load Current: 100mA (6V)Rated torque: 1.3Kg.cm (6V)Rated Speed: 130rpm (6V)Rated Current: 0.5A (6V)
Size:25*51.8(gearhead length 21mm)(data sheet download @6V 1360rpm 4.4:1 )